This connector, a smaller version of the male Tamiya connector, is commonly used with battery packs for RC applications. The connector is keyed so that power cannot be reversed, and a latch secures the connection so that it will not become disconnected. You can use a crimping tool to attach these connectors to your own 16- to 20-AWG wires. This pack contains enough housings and crimp pins (including two spare pins) for 3 male connectors.